You can use sysread to read the header out of the file. Then, use something like Data::FixedFormat or Parse::FixedLength to decode the information. These modules use pack and unpack to manipulate buffers of (possibly binary) data. 

---
print map { my ($m)=1<<hex($_)&11?' ':'';
$m.=substr('AHJPacehklnorstu',hex($_),1) }
split //,'2fde0abe76c36c914586c';

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In reply to Re: Extracting Image/File Metadata by pfaut
in thread Extracting Image/File Metadata by JunkGuy

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